K League 1
- 18O
- 18W
- 18S
90% or more have a feeSome have a feeNo fee recordedS summer, W winter, O other dates
2018-19 · Winter window
By club
- Gimcheon Sangmu2 in0 out
- Incheon United1 in1 out
- Pohang Steelers1 in1 out
- Ulsan HD2 in0 out
- Jeju SK0 in1 out
- Jeonnam Dragons1 in0 out
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources